Every spring the surroundings of Lake Lubans, the largest lake in Latvia, are in flood. Efforts to prevent the floods have been going on since the middle of the 19th century. Today the lake, encircled by dikes, no longer threatens the surrounding homesteads but the apparent safety has been bought at a very high price – the destruction of the natural balance. Can the damage be remedied? Two Latvians will travel to the wetlands of Japan in search of a possible solution.